生物体没有水就不能生活的根本原因是（）

A、水在细胞中以两种形式存在

B、水在不同的生物中含量各不相同

C、细胞内的各种化学反应是在水中进行的

D、大部分水在细胞内可以自由流动

Soon, more of the information we receive via the Internet could come (71) in digital wrappers.

Wrappers are made up (72) software code that’s targeted to do specific things with the data (73) within them, such as helping to define queries for search engines. They also keep (74) from (75) access to that code.

（74）处填（）。

A．insiders

B．money

C．outsiders

D．warehouse